涡腔式自激振荡射流喷洒装置

Self-exited Oscillation Vortex Chamber Watering Device

介绍了涡腔式自激振荡射流喷洒装置的工作原理和应用范围。该装置利用环形涡腔对射流进行控制 ,利用涡腔的左、右腔的压力差产生自激振荡。根据主射流的动量平衡关系 ,通过空气孔流入涡腔的空气量和流出的空气量计算了交替切换所需的临界压力差 ,达到临界压力差所需的时间和振荡频率。这种新型喷洒装置能使射流呈扇面且分布均匀 ,可以用于道路的喷洒降尘 ,公路和铁路铁鬼积雪以及屋顶积雪的清除等。

A new type of watering device ,self exited oscillation vortex chamber watering device, is put forward.The jet is controlled by a circular vortex chamber,and self exited oscillation occurs due to a pressure difference between the left and right parts of vortex chamber. By the momentum balance of jet and the masses of air flowing into or out the chamber though air hole,the critical pressure and the time required for reaching the critical pressure can be calculated. This watering device has appropriate size of water drops and uniform water distribution.